Tweak Stencil chapter to use Table when specifying step sizes

contents/_build/html/_sources/stencil.ipynb

@@ -30,7 +30,7 @@
  },
  {
  "cell_type": "code",
- "execution_count": 1,
+ "execution_count": 6,
  "metadata": {
  "tags": [
  "hide-output"
@@ -44,7 +44,7 @@
  "</span>"
  ]
  },
- "execution_count": 1,
+ "execution_count": 6,
  "metadata": {},
  "output_type": "execute_result"
  },
@@ -55,7 +55,7 @@
  "</span>"
  ]
  },
- "execution_count": 1,
+ "execution_count": 6,
  "metadata": {},
  "output_type": "execute_result"
  }
@@ -77,11 +77,11 @@
  },
  {
  "cell_type": "code",
- "execution_count": 2,
+ "execution_count": 7,
  "metadata": {},
  "outputs": [],
  "source": [
- "gol←{≢⍸⍵}⌺3 3∊¨3+0,¨⊢ ⍝ Generate the next generation"
+ "gol ← {≢⍸⍵}⌺3 3∊¨3+0,¨⊢ ⍝ Generate the next generation"
  ]
  },
  {
@@ -93,7 +93,7 @@
  },
  {
  "cell_type": "code",
- "execution_count": 9,
+ "execution_count": 8,
  "metadata": {},
  "outputs": [
  {
@@ -110,15 +110,15 @@
  "</span>"
  ]
  },
- "execution_count": 9,
+ "execution_count": 8,
  "metadata": {},
  "output_type": "execute_result"
  }
  ],
  "source": [
  "glider ← 3 3⍴0 0 1 1 0 1 0 1 1\n",
  "dish ← 8 8⍴0\n",
- "dish[(⊂3 3)+⍸glider]←1\n",
+ "dish[(⊂3 3)+⍸glider] ← 1\n",
  "dish"
  ]
  },
@@ -131,7 +131,7 @@
  },
  {
  "cell_type": "code",
- "execution_count": 10,
+ "execution_count": 9,
  "metadata": {},
  "outputs": [
  {
@@ -150,7 +150,7 @@
  "</span>"
  ]
  },
- "execution_count": 10,
+ "execution_count": 9,
  "metadata": {},
  "output_type": "execute_result"
  }
@@ -172,7 +172,7 @@
  },
  {
  "cell_type": "code",
- "execution_count": 11,
+ "execution_count": 10,
  "metadata": {},
  "outputs": [
  {
@@ -182,7 +182,7 @@
  "</span>"
  ]
  },
- "execution_count": 11,
+ "execution_count": 10,
  "metadata": {},
  "output_type": "execute_result"
  }
@@ -262,25 +262,25 @@
  },
  {
  "cell_type": "code",
- "execution_count": 1,
+ "execution_count": 11,
  "metadata": {},
  "outputs": [
  {
  "data": {
  "text/html": [
- "<span style=\"white-space:pre; font-family: monospace\">┌─────┬─────┬─────┬──────┐\n",
- "│0 1 2│3 4 5│6 7 8│9 10 0│\n",
- "└─────┴─────┴─────┴──────┘\n",
+ "<span style=\"white-space:pre; font-family: monospace\">┌─────┬─────┬─────┬─────┐\n",
+ "│0 0 1│2 3 4│5 6 7│8 9 0│\n",
+ "└─────┴─────┴─────┴─────┘\n",
  "</span>"
  ]
  },
- "execution_count": 1,
+ "execution_count": 11,
  "metadata": {},
  "output_type": "execute_result"
  }
  ],
  "source": [
- "⊂⍤⊢⌺(2 1⍴3 3)⊢⍳10"
+ "⊂⍤⊢⌺(⍪3 3)⊢⍳10"
  ]
  },
  {
@@ -294,25 +294,25 @@
  },
  {
  "cell_type": "code",
- "execution_count": 2,
+ "execution_count": 12,
  "metadata": {},
  "outputs": [
  {
  "data": {
  "text/html": [
- "<span style=\"white-space:pre; font-family: monospace\">┌───┬───┬───┬───┬────┐\n",
- "│1 2│3 4│5 6│7 8│9 10│\n",
- "└───┴───┴───┴───┴────┘\n",
+ "<span style=\"white-space:pre; font-family: monospace\">┌───┬───┬───┬───┬───┐\n",
+ "│0 1│2 3│4 5│6 7│8 9│\n",
+ "└───┴───┴───┴───┴───┘\n",
  "</span>"
  ]
  },
- "execution_count": 2,
+ "execution_count": 12,
  "metadata": {},
  "output_type": "execute_result"
  }
  ],
  "source": [
- "⊂⍤⊢⌺(2 1⍴2 2)⊢⍳10"
+ "⊂⍤⊢⌺(⍪2 2)⊢⍳10"
  ]
  },
  {

contents/_build/html/stencil.html

@@ -396,7 +396,7 @@ <h1>The Stencil operator: <code class="docutils literal notranslate"><span class
 <p>Here’s the current champion, all 17 symbols of it:</p>
 <div class="cell docutils container">
 <div class="cell_input docutils container">
-<div class="highlight-APL notranslate"><div class="highlight"><pre><span></span><span class="nv">gol</span><span class="kd">←</span><span class="kt">{</span><span class="o">≢⍸</span><span class="bp">⍵</span><span class="kt">}</span><span class="na">⌺</span><span class="m">3</span> <span class="m">3</span><span class="o">∊</span><span class="na">¨</span><span class="m">3</span><span class="o">+</span><span class="m">0</span><span class="o">,</span><span class="na">¨</span><span class="o">⊢</span> <span class="c1">⍝ Generate the next generation</span>
+<div class="highlight-APL notranslate"><div class="highlight"><pre><span></span><span class="nv">gol</span> <span class="kd">←</span> <span class="kt">{</span><span class="o">≢⍸</span><span class="bp">⍵</span><span class="kt">}</span><span class="na">⌺</span><span class="m">3</span> <span class="m">3</span><span class="o">∊</span><span class="na">¨</span><span class="m">3</span><span class="o">+</span><span class="m">0</span><span class="o">,</span><span class="na">¨</span><span class="o">⊢</span> <span class="c1">⍝ Generate the next generation</span>
 </pre></div>
 </div>
 </div>
@@ -406,7 +406,7 @@ <h1>The Stencil operator: <code class="docutils literal notranslate"><span class
 <div class="cell_input docutils container">
 <div class="highlight-APL notranslate"><div class="highlight"><pre><span></span><span class="nv">glider</span> <span class="kd">←</span> <span class="m">3</span> <span class="m">3</span><span class="o">⍴</span><span class="m">0</span> <span class="m">0</span> <span class="m">1</span> <span class="m">1</span> <span class="m">0</span> <span class="m">1</span> <span class="m">0</span> <span class="m">1</span> <span class="m">1</span>
 <span class="nv">dish</span> <span class="kd">←</span> <span class="m">8</span> <span class="m">8</span><span class="o">⍴</span><span class="m">0</span>
-<span class="nv">dish</span><span class="sr">[</span><span class="p">(</span><span class="o">⊂</span><span class="m">3</span> <span class="m">3</span><span class="p">)</span><span class="o">+⍸</span><span class="nv">glider</span><span class="sr">]</span><span class="kd">←</span><span class="m">1</span>
+<span class="nv">dish</span><span class="sr">[</span><span class="p">(</span><span class="o">⊂</span><span class="m">3</span> <span class="m">3</span><span class="p">)</span><span class="o">+⍸</span><span class="nv">glider</span><span class="sr">]</span> <span class="kd">←</span> <span class="m">1</span>
 <span class="nv">dish</span>
 </pre></div>
 </div>
@@ -485,7 +485,7 @@ <h1>The Stencil operator: <code class="docutils literal notranslate"><span class
 <p><em>Stencil</em> has a few more tricks up its sleeve. The right operand can be an array, where the first row defines the shape of the window, and the second row defines the <em>step size</em>. Again, using the vector above, we can say that we want a size 3 window, but instead of moving it one step (the default), we want to shift it three steps each time:</p>
 <div class="cell docutils container">
 <div class="cell_input docutils container">
-<div class="highlight-APL notranslate"><div class="highlight"><pre><span></span><span class="o">⊂</span><span class="na">⍤</span><span class="o">⊢</span><span class="na">⌺</span><span class="p">(</span><span class="m">2</span> <span class="m">1</span><span class="o">⍴</span><span class="m">3</span> <span class="m">3</span><span class="p">)</span><span class="o">⊢⍳</span><span class="m">10</span>
+<div class="highlight-APL notranslate"><div class="highlight"><pre><span></span><span class="o">⊂</span><span class="na">⍤</span><span class="o">⊢</span><span class="na">⌺</span><span class="p">(</span><span class="o">⍪</span><span class="m">3</span> <span class="m">3</span><span class="p">)</span><span class="o">⊢⍳</span><span class="m">10</span>
 </pre></div>
 </div>
 </div>
@@ -499,7 +499,7 @@ <h1>The Stencil operator: <code class="docutils literal notranslate"><span class
 <p>With an even size we can create non-overlapping windows that don’t overhang,</p>
 <div class="cell docutils container">
 <div class="cell_input docutils container">
-<div class="highlight-APL notranslate"><div class="highlight"><pre><span></span><span class="o">⊂</span><span class="na">⍤</span><span class="o">⊢</span><span class="na">⌺</span><span class="p">(</span><span class="m">2</span> <span class="m">1</span><span class="o">⍴</span><span class="m">2</span> <span class="m">2</span><span class="p">)</span><span class="o">⊢⍳</span><span class="m">10</span>
+<div class="highlight-APL notranslate"><div class="highlight"><pre><span></span><span class="o">⊂</span><span class="na">⍤</span><span class="o">⊢</span><span class="na">⌺</span><span class="p">(</span><span class="o">⍪</span><span class="m">2</span> <span class="m">2</span><span class="p">)</span><span class="o">⊢⍳</span><span class="m">10</span>
 </pre></div>
 </div>
 </div>

contents/_build/jupyter_execute/stencil.apl

@@ -2,11 +2,11 @@
 ]box on
 ]rows on
 
-gol←{≢⍸⍵}⌺3 3∊¨3+0,¨⊢ ⍝ Generate the next generation
+gol ← {≢⍸⍵}⌺3 3∊¨3+0,¨⊢ ⍝ Generate the next generation
 
 glider ← 3 3⍴0 0 1 1 0 1 0 1 1
 dish ← 8 8⍴0
-dish[(⊂3 3)+⍸glider]←1
+dish[(⊂3 3)+⍸glider] ← 1
 dish
 
 1 4⍴(gol⍣1⊢dish)(gol⍣2⊢dish)(gol⍣3⊢dish)(gol⍣4⊢dish)
@@ -17,9 +17,9 @@ dish
 
 ⊂⍤⊢⌺3⊢⍳10
 
-⊂⍤⊢⌺(2 1⍴3 3)⊢⍳10
+⊂⍤⊢⌺(⍪3 3)⊢⍳10
 
-⊂⍤⊢⌺(2 1⍴2 2)⊢⍳10
+⊂⍤⊢⌺(⍪2 2)⊢⍳10
 
 ⊂⍤⊢⌺(⍪4 4)⊢⍳10
 

contents/_build/jupyter_execute/stencil.ipynb

@@ -81,7 +81,7 @@
  "metadata": {},
  "outputs": [],
  "source": [
- "gol←{≢⍸⍵}⌺3 3∊¨3+0,¨⊢ ⍝ Generate the next generation"
+ "gol ← {≢⍸⍵}⌺3 3∊¨3+0,¨⊢ ⍝ Generate the next generation"
  ]
  },
  {
@@ -118,7 +118,7 @@
  "source": [
  "glider ← 3 3⍴0 0 1 1 0 1 0 1 1\n",
  "dish ← 8 8⍴0\n",
- "dish[(⊂3 3)+⍸glider]←1\n",
+ "dish[(⊂3 3)+⍸glider] ← 1\n",
  "dish"
  ]
  },
@@ -280,7 +280,7 @@
  }
  ],
  "source": [
- "⊂⍤⊢⌺(2 1⍴3 3)⊢⍳10"
+ "⊂⍤⊢⌺(⍪3 3)⊢⍳10"
  ]
  },
  {
@@ -312,7 +312,7 @@
  }
  ],
  "source": [
- "⊂⍤⊢⌺(2 1⍴2 2)⊢⍳10"
+ "⊂⍤⊢⌺(⍪2 2)⊢⍳10"
  ]
  },
  {